• 제목/요약/키워드: on-line survey

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1D 측선에 의한 절리 자료에 대한 편향 보정 기법에 관한 연구 (A study of the Sampling Bias Correction on Joint Data from 1D Survey Line)

  • 엄정기
    • 터널과지하공간
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    • 제13권5호
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    • pp.344-352
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    • 2003
  • 시추공 또는 선형조사선과 같은 1D측선에서 측정된 절리 자료의 샘플링 편향을 보정하는 절차를 기술하였다. ID 측선에서 절리가 관측될 수 있는 확률은 측선 방향에 대한 절리의 상대적인 방향 이외에도 절리 크기, 절리 모양 및 측선 길이 등의 복합적 요인에 의하여 결정될 수 있다. 본 연구에서는 절리의 모양을 원판형이라 가정하고 절리의 방향 및 크기에 의하여 나타날 수 있는 절리 자료의 방향 편향 효과를 동시에 보정할 수 있는 방법론을 제시하고, 현장적용을 통하여 방향 편향 보정이 절리군의 방향분포에 미치는 영향에 대하여 고찰하였다. 또한, 유한 길이의 측선으로부터 산정된 절리군의 간격분포는 샘플링 영역인 측선 길이에 따라 다르게 나타날 수 있으며, 이와 같은 간격 편향에 대한 보정절차를 기술하였다.

성인소비자 대상의 온라인 소비자교육프로그램 개발 및 평가 -소비자주의영역을 중심으로- (A Development and Evaluation of an On-line Consumer Education Program for Adults in Consumerism - Focused on consumerism -)

  • 김민정;김기옥
    • 가정과삶의질연구
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    • 제21권5호
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    • pp.77-91
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    • 2003
  • Most consumers have experienced unexpected consumer problems in the new consumption environment. Accordingly consumer education is very important to prevent consumer problems in advance. Adult consumers don't have many chances to take consumer education with various reasons though they are in a core position in the economy. This study developed an on-line consumer education program for adults in consumerism in the website, www.bestmaker.com/cw. The contents of consumerism were divided into five subfields such as consumer rights, responsibility and roles; consumer law; consumer participation; consumer protection; on-line survey. The on-line consumer education program was given to 164 adult consumers who could use internet, and the contents and the methods of the consumer education were evaluated by the same consumers with an on-line survey. The results of the survey show that those in 30's through 40's and with higher education are more satisfied with the contents and the methods of the on-line consumer education. This study implies that the contents, the methods, and the design of an on-line consumer education need to be consistent each other and well organized altogether.

전기, 전자탐사에 의한 경주남부 (입실지역)의 울산 단층 심부구조 (Deep structure of Ulsan fault by electric and EM surveys in ipsil area, South of Kyeongju)

  • 손호응
    • 자원환경지질
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    • 제32권2호
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    • pp.161-167
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    • 1999
  • Electric and electromagnetic surveys were conducted to investigate the deep structure of the Ulsan fault in Ipsil area, south of Kyeongju. On this study, especially high-frequency magnetotelluric method of electromagnetic survey in the frequency range of 10~100,000 Hz was mainly employed to study the deep subsurface configuration. High-frequency MT survey was performed at 70 points of spacing 30~50 m, making 3.8 km survey line. As a survey result, a 2-km-depth 2-D cross-section was achieved. It shows vertical and horizontal subsurface variations of resistivity values. Near-surface layer having low resistivity value becomes thicker eastward up to 800m. There is a steep low resistivity zone in the west side of survey line, and there exists two low resistivity zones dipping west in the east side of survey line. Two low resistivity zones are interpreted to be related to major movement pattern of the Ulsan fault. This suggests that major fault lines are developed on both peripheral sides of the broad fault zone.

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Enhancement of Seismic Stacking Energy with Crossdip Correction for Crooked Survey Lines

  • Kim, Ji Soo;Lee, Sun Jung;Seo, Yong Seok;Ju, Hyeon Tae
    • 지질공학
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    • 제24권2호
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    • pp.171-178
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    • 2014
  • In seismic reflection data processing, the crossdip correction effectively focuses the stacking energy near the sharp bends of a crooked survey line. Additionally, approximate 3-D information on the reflector (e.g., true crossdip angle and lateral continuity) are locally investigated as a by-product of the crossdip correction procedure. Improvement of the signal-to-noise ratio and estimation of reflector crossdip attitude are tested, in terms of both common midpoint bin direction and processing-line type, using synthetic seismic reflection data. To effectively image the reflection energy near bends in seismic survey lines, straight-line binning is preferred to slalom-line binning.

Fuzzy모형을 이용한 시가지 내 철도선로 정비 우선순위 결정에 관한 연구 (A Study on Determination of Ranking for Railroad Line's Improvement in Seoul using Fuzzy Theory)

  • 손기복;김경철
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 1998년도 창립기념 춘계학술대회 논문집
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    • pp.184-193
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    • 1998
  • The existence of railroad line gives many influences in various kinds of aspects. To minimize negative influences is necessary to line's improvement, but appropriate methodology doesn't show until now. In this study, Fuzzy Integration Method(FIM) are employed in an effort to give ranking for railroad line's improvement in Seoul. The FIM is designed to generalize a various influences, appeared on account of existence of railroad line. Empirical analysis is performed for railroad line in distance of 83.5㎞ in Seoul. The total lines are divided in 51 sections, and there are selected a 11 evaluation index to reflect influences. Through a questionnaire survey about residents, operator and administrator, important degree of evaluation items are decided, reveal ins the interests of related groups. Then, evaluation values are calculated wi th practical survey results about each sections. The results of evaluation reveal that the higher ranking of improvement from FIM concentrates the Kyeng-Ul Line and Kyeng-Won line because these lines appear a many public discontents and negative influences such as noise and demolition of living environment.

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온라인과 오프라인의 점포속성 비교 (A Comparison of Store Attributes : Online versus Off-line Stores)

  • 이영주;박경애;허순임
    • 한국의류학회지
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    • 제26권8호
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    • pp.1265-1273
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    • 2002
  • The purposes of this study were to examine online store attributes sought and evaluated by online shoppers and to compare those attributes with those of off-line stores. Data were obtained from an online questionnaire survey to 850 online shoppers who were randomly selected from the panel of an online survey agency, and 615 responses were analyzed. The t-tests revealed that there were significant differences on store attributes sought and evaluated by shoppers between online and off-line stores. Price related attributes (i.e., low price and reasonable price) and store name were more important for online stores while product related attributes (i.e., assortment, fashion, and brand) were more for off-line stores. Price related attributes, promotion, and entertainment were highly evaluated on online stores while product related attributes and service were on off-line stores.

SAMI Galaxy Survey Data Release 2: Absorption-line Physics

  • 오슬희
    • 천문학회보
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    • 제43권2호
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    • pp.53.1-53.1
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    • 2018
  • We present the second data release from the SAMI Galaxy Survey. The data release contains reduced spectral cubes for 1559 galaxies, about 50% of the full survey, having a redshift range 0.004 < z < 0.113 and a large stellar mass range 7.5 < log($M_*/M_{\odot}$) < 11.6. This release also includes stellar kinematic and stellar population value-added products derived from absorption line measurements, and all emission line value-added products from Data Release One. The data are provided online through Australian Astronomical Optics' Data Central. Our poster presents stellar/gas kinematics on the metallicity-mass plane and highlight several galaxies from the SAMI Galaxy Survey that have interesting stellar and gas kinematics. For more information about data release 2, please see: https://sami-survey.org/abdr.

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저전압 전기설비의 온라인 감시시스템 구축을 위한 국내외 실태조사 (The Survey of Domestic and Foreign for On-Line Monitoring System at Low Voltage Facilities)

  • 김영석;송길목;김선구
    • 조명전기설비학회논문지
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    • 제21권5호
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    • pp.75-81
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    • 2007
  • 본 논문에서는 전기안전에 대한 부가서비스 같은 저전압 전기설비의 온라인 감시시스템 구축을 위한 국내외 실태조사를 수행하였다. 일본은 미래 정보화 사회를 위해 IT 기본법에 근거한 온라인 전기설비 감시시스템 서비스를 실시하고 있으며, 전기안전뿐만 아니라 지진이나 방범등의 부가서비스를 실시하고 있었다. 미국 및 유럽에서는 전력선 통신을 사용하여, 온라인 감시 및 빌딩군 관리 서비스를 실시하고 있었다. 국내에서도 전기안전과 관련하여 디지털 수배전반 등을 통해 누설전류 측정, 부하관리 등에 대한 서비스를 일부 기업에서 서비스를 실시하고 있었다. 실태조사를 통해, 국내에서도 시장 활성화를 위한 법, 제도적 개선이 필요할 것으로 판단된다.

웹서비스품질이 초기신뢰와 오프라인 방문의도에 미치는 영향: 중소병원을 중심으로 (The Effect of Hospital Web Service Quality on Initial Trust and Off-line Visit Intention: Focusing on Medium and Small Size Hospital)

  • 김상한;조철호
    • 품질경영학회지
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    • 제42권3호
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    • pp.445-458
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    • 2014
  • Purpose: Present study was designed to examine the casual relationships among web service quality, customer satisfaction, initial trust and off-line visit intention in hospital website. Research object was limited to web service quality of general hospital. We applied path analysis model in order to test the hypotheses and research model. Methods: Survey tool, that is, Questionnaire had obtained validity through literature survey, exploratory survey and pretest and sample 320 was selected. For statistical treatment of pretest and main analysis, SPSS18.0 and AMOS18.0 were employed and Structural equation model was employed as analysis method. Results: Result of this study shows as follows. Factors of web service quality have an effect on customer satisfaction and initial trust, both of customer satisfaction and initial trust have an effect on off-line visit intention. Also customer satisfaction affects initial trust. Especially, customer satisfaction and initial trust were empirically confirmed as the important factors preceding off-line vis it intention. Conclusion: Therefore, present study shows that customer satisfaction and initial trust are important factors that medium and small size hospitals have to emphasize to raise performance. However, present study has some limitations to additionally research in the future.

설문조사를 통한 신규 통신서비스의 수요예측 방안

  • 김지표;홍정식;안재경;강원철;이병철;한권훈
    • 한국경영과학회:학술대회논문집
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    • 한국경영과학회 1998년도 추계학술대회 논문집
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    • pp.245-248
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    • 1998
  • In this paper, as a forecasting method, the market survey for forecasting demand is introduced for the estimation of subscriber line demand in the optical access networks. The market survey method for the new multimedia services is attempted to collect information directly from customers using the questionnaires for home-users and business-users in local loops. Analysis rationale of questionnaires is suggested to estimate the number of subscriber lines. Also, two measures are presented to quantify the credibility on survey responses; one is the probability that the customer will use the multimedia services and the other is the rate that the subscriber line demand will be actually realized. The former measure is calculated based on the information on customers and the Logit analysis. The latter is obtained by the degree of customer's knowledge about specific services and the customer's willingness to use the services. Based on the values of two measures, the number of subscriber line demand can be developed for installing the optical access networks.

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